I just bought a 1992 WhiteGMC WIA with a TD123EA engine and 8 speed manual Volvo transmission. It runs and drives great, but it has some electrical gremlins I need to root out with the instrument cluster, lights, cruise, etc.. I've searched over the web for reference manuals and have only been able to come up with a TD122 workshop manual in spanish. Is there a place where manuals can be had? Thanks.